Typically it takes about 15 minutes for DNS changes to take effect. However, it can occasionally take longer for a change you've made to update across the Internet's DNS system. If you're having trouble with mail flow or other issues after adding DNS records, see Troubleshoot issues after changing your domain name or DNS records.

Add a TXT record for verification

Before you use your domain with Office 365, we have to make sure that you own it. Your ability to log in to your account at your domain registrar and create the DNS record proves to Office 365 that you own the domain.

Note

This record is used only to verify that you own your domain; it doesn't affect anything else. You can delete it later, if you like.

Typically it takes about 15 minutes for DNS changes to take effect. However, it can occasionally take longer for a change you've made to update across the Internet's DNS system. If you're having trouble with mail flow or other issues after adding DNS records, see Troubleshoot issues after changing your domain name or DNS records.

Add the CNAME records that are required for Office 365

To get started, go to your domains page at eNom Central by using this link. You'll be prompted to login.

Under my domains, choose the name of the domain that you want to edit.

On the Manage Domain drop-down list, choose Host Records.

Choose new row.

In the boxes for the six new records, type or copy and paste the following values.

(Select the **Record Type** value from the drop-down list.)

Host Name

Record Type

Address

autodiscover

CNAME (Alias)

autodiscover.outlook.com. This value MUST end with a period (.)

sip

CNAME (Alias)

sipdir.online.lync.com. This value MUST end with a period (.)

lyncdiscover

CNAME (Alias)

webdir.online.lync.com. This value MUST end with a period (.)

msoid

CNAME (Alias)

clientconfig.microsoftonline-p.net. This value MUST end with a period (.)

enterpriseregistration

CNAME (Alias)

enterpriseregistration.windows.net. This value MUST end with a period (.)

enterpriseenrollment

CNAME (Alias)

enterpriseenrollment.manage.microsoft.com. This value MUST end with a period (.)

Choose save.

Add a TXT record for SPF to help prevent email spam

Important

You cannot have more than one TXT record for SPF for a domain. If your domain has more than one SPF record, you'll get email errors, as well as delivery and spam classification issues. If you already have an SPF record for your domain, don't create a new one for Office 365. Instead, add the required Office 365 values to the current record so that you have a single SPF record that includes both sets of values.

Add the two SRV records that are required for Office 365

To get started, go to your domains page at eNom Central by using this link. You'll be prompted to login.

Under my domains, choose the name of the domain that you want to edit.

On the Manage Domain drop-down list, choose Host Records.

To the right of new row, choose add SRV or SPF record.

In the boxes for the two new records, type or copy and paste the values from the following table.

Service

Protocol

Priority

Weight

Port

Target (Hostname)

_sip

_tls

100

1

443

sipdir.online.lync.com. This value MUST end with a period (.)

_sipfederationtls

_tcp

100

1

5061

sipfed.online.lync.com. This value MUST end with a period (.)

Choose save

Note

Typically it takes about 15 minutes for DNS changes to take effect. However, it can occasionally take longer for a change you've made to update across the Internet's DNS system. If you're having trouble with mail flow or other issues after adding DNS records, see Troubleshoot issues after changing your domain name or DNS records.

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